Home / 38,568,864.32-53,222,412.37-21,166,330.55

Finding the Fourth Proportional to 38,568,864.32, 53,222,412.37 and 21,166,330.55

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Solution

The fourth proportional to 38,568,864.32, 53,222,412.37 and 21,166,330.55 is: 29,208,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,568,864.32 : 53,222,412.37 = 21,166,330.55 : x
  2. Step 2: Convert to fraction form
    38,568,864.32/53,222,412.37 = 21,166,330.55/x
  3. Step 3: Cross multiply
    38,568,864.32x = 53,222,412.37 × 21,166,330.55
  4. Step 4: Simplify right side
    38,568,864.32x = 1,126,523,172,572,801
  5. Step 5: Solve for x
    x = 1,126,523,172,572,801/38,568,864.32
  6. Step 6: Final answer
    x = 29,208,098.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.